孩交bbwxxxx,美女无遮挡免费视频网站,国产精品久久久久久吹潮,狠狠人妻久久久久久综合蜜桃

Plastic thermal insulation nail also named plastic heat-insulation nail, heat insulation nails, heat preservation nails, exterior wall insulation nails, insulation supporting pin etc, mainly used to fix insulation board in exterior insulation system, and mainly (insulation corner network) combined with increased efficiency of 2-5 times and reduce labor intensity, and shorten the construction period. It can not only improve project quality but also increase efficiency.
Two types: segregating insulation nails and integrative insulation nails.
Treatment of iron nails surface: galvanized
Components: galvanized iron screws and nylon tube.
Color: white, blue, gray